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Xifactinus was a huge
This beaked mouth was well-suited for its bottom-feeding and scavenging lifestyle
and has been known to science since the mid-nineteenth century
" This means that Dimetrodon is grouped with mammals in the evolutionary group Synapsida
and even smaller members of its own kind
Dimetrodon Jaw Section | Texas minerals Xifactinus was a hugeDimetrodon sp. Permian Nocona Formation Archer County, Texas Specimen approx. size: 9mm x 8mm x 4mm Comes in an 1. 25" acrylic case One of the most notable characteristics of Dimetrodon is the large sail on its back, created by long spines that stretch out from its vertebrae. This creature walked on four legs and had a curved skull with a variety of large teeth of different sizes lining its jaws. Its distinctive sail may have served to stabilize its
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